{"id":9745,"date":"2023-12-12T18:06:00","date_gmt":"2023-12-12T22:06:00","guid":{"rendered":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/webb-sheds-light-on-an-exploded-star\/"},"modified":"2023-12-12T18:06:00","modified_gmt":"2023-12-12T22:06:00","slug":"webb-sheds-light-on-an-exploded-star","status":"publish","type":"post","link":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/webb-sheds-light-on-an-exploded-star\/","title":{"rendered":"Webb Sheds Light on an Exploded Star"},"content":{"rendered":"

Webb Sheds Light on an Exploded Star<\/h2>\n

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\"Cassiopeia<\/figure>
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NASA\u2019s James Webb Space Telescope\u2019s new view of Cassiopeia A (Cas A) in near-infrared light is giving astronomers hints at the dynamical processes occurring within the supernova remnant. Tiny clumps represented in bright pink and orange make up the supernova\u2019s inner shell, and are comprised of sulfur, oxygen, argon, and neon from the star itself. A large, striated blob at the bottom right corner of the image, nicknamed Baby Cas A, is one of the few light echoes visible NIRCam\u2019s field of view. In this image, red, green, and blue were assigned to Webb\u2019s NIRCam data at 4.4, 3.56, and 1.62 microns (F444W, F356W, and F162M, respectively).<\/div>\n
NASA, ESA, CSA, STScI, D. Milisavljevic (Purdue University), T. Temim (Princeton University), I. De Looze (University of Gent)<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n

Supernova remnant Cassiopeia A (Cas A) shines in a new image from Dec. 10, 2023, from NASA\u2019s James Webb Space Telescope. Webb\u2019s Near-Infrared Camera (NIRCam) view of Cas A displays this stellar explosion at a resolution previously unreachable at these wavelengths, revealing intricate details of the expanding shell of material slamming into the gas shed by the star before it exploded.<\/p>\n

Cas A is one of the most well-studied supernova remnants in all the cosmos. Over the years, ground-based and space-based observatories, including NASA\u2019s\u00a0Chandra X-Ray Observatory<\/a>,\u00a0Hubble Space Telescope<\/a>, and retired\u00a0Spitzer Space Telescope<\/a>\u00a0have assembled a multiwavelength picture of the object\u2019s remnant.<\/p>\n

However, astronomers have now entered a new era in the study of Cas A. In April 2023, Webb\u2019s Mid-Infrared Instrument (MIRI)\u00a0started this chapter<\/a>, unveiling new and unexpected features within the inner shell of the supernova remnant. Many of those features are invisible in the new NIRCam image, and astronomers are investigating why.<\/p>\n

Read on to find out what we can learn from this new image of Cassiopeia A.<\/a><\/p>\n

Image Credit: NASA, ESA, CSA, STScI, D. Milisavljevic (Purdue University), T. Temim (Princeton University), I. De Looze (University of Gent)<\/em><\/p>\n

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\nMonika Luabeya <\/p>\n","protected":false},"excerpt":{"rendered":"

Supernova remnant Cassiopeia A (Cas A) shines in a new image from Dec. 10, 2023, from NASA\u2019s James Webb Space Telescope. Webb\u2019s Near-Infrared Camera (NIRCam) view of Cas A displays this stellar explosion at a resolution previously unreachable at these wavelengths, revealing intricate details of the expanding shell of material slamming into the gas shed [\u2026] Continue reading → <\/span><\/a><\/p>\n

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